This guidance is designed for state environmental and health agencies, consultants, and other stakeholders who need practical tools to identify, evaluate, and manage biological contaminants found in water, soil, air, and waste.

This guidance will help environmental regulatory agencies and other stakeholders identify examples of CEC monitoring programs; evaluate potential hazards; communicate risk from CEC to the public; and understand how laboratory analytical methods can be used in the identification process.

This guidance document provides a comprehensive defensible framework for establishing and using soil background in risk assessments.

The Bioavailability in Contaminated Soil document describes the general concepts of the bioavailability of contaminants in soil, reviews the state of the science, and discusses how to incorporate bioavailability into human health risk assessment.

This document assists effective decision-making among state, local, and federal project managers and decision makers tasked with developing or reviewing risk assessments for contaminated sites using site-specific approaches, scenarios, and parameters.

Through actual and hypothetical case studies, examines state regulatory agencies’ use of risk assessment and risk-related practices in managing contaminated sites.

Provides information on the different methods used by regulatory agencies to develop and apply screening values for evaluating contaminated media.